Adding ElementsAccessor::Concat

src/array.js

Index: src/array.js
diff --git a/src/array.js b/src/array.js
index 84c76620326f2973b270efd634594bc8e60e5df2..75b15fe5c7d4c3aee9f1e26c211b364267f0393e 100644
--- a/src/array.js
+++ b/src/array.js
@@ -522,21 +522,8 @@ function ArrayPush() {
 }
 
 
-// Returns an array containing the array elements of the object followed
-// by the array elements of each argument in order. See ECMA-262,
-// section 15.4.4.7.
 function ArrayConcatJS(arg1) {  // length == 1

[Camillo Bruni, 2015/09/04 13:54:55]

This is no longer needed, however, I don't know how to properly remove it, since
it complains during mksnapshot and/or linking.

-  CHECK_OBJECT_COERCIBLE(this, "Array.prototype.concat");
-
-  var array = TO_OBJECT(this);
-  var arg_count = %_ArgumentsLength();
-  var arrays = new InternalArray(1 + arg_count);
-  arrays[0] = array;
-  for (var i = 0; i < arg_count; i++) {
-    arrays[i + 1] = %_Arguments(i);
-  }
-
-  return %ArrayConcat(arrays);
+  return 1
 }